| Abstract: | The new Pd(II), Pt(II), Re(V), Mo(VI) and W(VI) complexes of 2-hydroxynicotinic acid (H2nicO), trans-PdCl(HnicO)(PPh3)2]·0.75CH3CN (1), KPdCl(HnicO)2]·H2O (2), Pd(HnicO)2(bipy)] (3), cis-PtCl(HnicO)(PPh3)2]·0.75CH3OH·0.5H2O (4), PtCl(HnicO)(bipy)] (5), cis-ReOI2(HnicO)(PPh3)] (6), Na2Mo2O6(HnicO)2]·5H2O (7), Na2Mo4O12(HnicO)2]·2H2O (8) and Na2W2O6(HnicO)2]·5H2O (9) have been prepared. The crystal structures of 1 and 4, were determined by X-ray diffraction and show the HnicO− ligand coordinated to palladium or platinum through the nitrogen atom only. Infrared, Raman, 1H and 13C{1H} NMR spectroscopic data for the complexes are presented and are in agreement with the crystallographic results. |
